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lockstat: better class name representation

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optionally add class->name_version and class->subclass to the class name

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Zijlstra 2007-07-19 01:49:01 -07:00 committed by Linus Torvalds
parent 96645678cd
commit d38e1d5aae
1 changed files with 23 additions and 1 deletions
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24
kernel/lockdep_proc.c
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@ -421,8 +421,30 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
class = data->class; class = data->class;
stats = &data->stats; stats = &data->stats;
snprintf(name, 38, "%s", class->name); namelen = 38;
if (class->name_version > 1)
namelen -= 2; /* XXX truncates versions > 9 */
if (class->subclass)
namelen -= 2;
if (!class->name) {
char str[KSYM_NAME_LEN];
const char *key_name;
key_name = __get_key_name(class->key, str);
snprintf(name, namelen, "%s", key_name);
} else {
snprintf(name, namelen, "%s", class->name);
}
namelen = strlen(name); namelen = strlen(name);
if (class->name_version > 1) {
snprintf(name+namelen, 3, "#%d", class->name_version);
namelen += 2;
}
if (class->subclass) {
snprintf(name+namelen, 3, "/%d", class->subclass);
namelen += 2;
}
if (stats->write_holdtime.nr) { if (stats->write_holdtime.nr) {
if (stats->read_holdtime.nr) if (stats->read_holdtime.nr)